<StackLayoutWidget>:
    orientation: "lr-tb"

    canvas:
        Color:
            rgba: [1, 1, 1, 1]
        Rectangle:
            size: self.size
            pos: self.pos

    Button:
        text: "B1"
        size_hint: [0.2, 0.1]

    Button:
        text: "B2"
        size_hint: [0.2, 0.1]

    Button:
        text: "B3"
        size_hint: [0.2, 0.1]

    Button:
        text: "B4"
        size_hint: [0.2, 0.1]

    Button:
        text: "B5"
        size_hint: [0.2, 0.1]

    Button:
        text: "B6"
        size_hint: [0.2, 0.1]

    Button:
        text: "B7"
        size_hint: [0.2, 0.1]

    Button:
        text: "B8"
        size_hint: [0.2, 0.1]

    Button:
        text: "B9"
        size_hint: [0.2, 0.1]

    Button:
        text: "10"
        size_hint: [0.2, 0.1]
